Anyone could share link website or thread for coin claim-able for those older transactions or holder BTC.
I have casascius but i'm only claim BCH for now, any recommendation for claim those coins ?
For BCH you need to have BTC before block 478558
[1] hence you need the private key of the address where you own your coins.
Note that you do not need any bitcoins for this process, so before extracting the private key, send all the bitcoins to a new address, extract the private key, and then download Electron Cash
[2], import that private key in that wallet.
If you tell us the name of the wallet you used to receive bitcoins, the answer will be more accurate, or search Google using this formula.
Extract <wallet name here> private key
[1]
https://blockchain.info/block/0000000000000000011865af4122fe3b144e2cbeea86142e8ff2fb4107352d43[2]
https://electroncash.org/